SOLVED
I found this post:
My code had: "Spark.variable("result", &resultstr, STRING);"
I changed it to "Spark.variable("result", resultstr, STRING);" and compile started to work!
SOLVED
I found this post:
My code had: "Spark.variable("result", &resultstr, STRING);"
I changed it to "Spark.variable("result", resultstr, STRING);" and compile started to work!